IEEE 802.15.4
IEEE 802.15.4 - Low-Rate Wireless Personal Area Networks (LR-WPANs)
Overview
Defines the physical layer and media access control for low-rate, low-power wireless networks. Operates in the 2.4 GHz, 915 MHz, and 868 MHz bands with data rates of 20-250 kbps. Forms the radio foundation for 6LoWPAN (IPv6 over 802.15.4), Zigbee, Thread, and other IoT mesh protocols.
Why it matters for RFID
The radio layer for constrained IoT networks where CoAP runs over 6LoWPAN. Relevant for RFID sensor networks and low-power edge gateways that bridge between wireless sensor nodes and RFID readers.